//封装微信登录接口
export const wxLogin = (appid, url) => {
    let redirect_uri = encodeURIComponent(url)
    window.location.href =
        `https://open.weixin.qq.com/connect/oauth2/authorize?appid=${appid}&redirect_uri=${redirect_uri}&response_type=code&scope=snsapi_userinfo&state=STATUS#wechat_redirect`
}

// 获取url上的参数
export const getUrlParam = (name) => {
    let reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)"); //构造一个含有目标参数的正则表达式对象
    let r = window.location.search.substr(1).match(reg); //匹配目标参数
    if (r != null) return decodeURIComponent(r[2]);
    return null
}